A&P1.17 Flashcards
Muscles of Medial Compartment of Thigh - L, O, I, A
Pectineus
L: Medial thigh intermediate
O: Superior ramus of pubis
I: Pectineal line of femur
A: ADduction of thigh at hip
Parallel fibers
- Most superior of all adductors
Bone Markings of Thigh
Pectineal line
Where the linea aspera forks medially
Muscles of Medial Compartment of Thigh - L, O, I, A
Adductor Brevis
L: Medial thigh intermediate
O: Inferior ramus of pubis
I:
* Pectineal line
* Proximal part of linea aspera of femur
A: ADduction of thigh at hip
Parallel fibers
Muscles of Medial Compartment of Thigh - L, O, I, A
Adductor longus
L: Medial thigh intermediate
O: Pubic tubercle of pubis
I: Linea aspera of femur
A: ADduction of thigh at hip
Muscles of Medial Compartment of Thigh - L, O, I, A
Adductor Magnus
L: Medial thigh intermediate
O:
* Pubis
* Ischium
* Ischial tuberosity
I:
* Gluteal tuberosity
* Linea aspera
* Adductor tubercle of femur
A: ADduction of thigh at hip
Convergent fibers
Bony Markings of Thigh
Adductor tubercle
Small, sharp bony projection that’s just proximal to medial epicondyle of femur
Muscles of Medial Compartment of Thigh - L, O, I, A
Gracilis
L: Medial thigh superficial
O: Inferior ramus of pubis
I: Medial condyle of tibia (part of Pes anserinus)
A:
- ADduction of thigh at hip
- Flexion of leg at knee
Parallel fiber
Muscles of Posterior Compartment of Thigh: Hamstrings - L, O, I, A
Semimembranosus
L: Posterior thigh deep
O: Ischial tuberosity of ischium
I: Posterior aspect of medial condyle of tibia
A:
- Extension of thigh at hip
- Flexion of leg at knee
Parallel fibers
Muscles of Posterior Compartment of Thigh: Hamstrings - L, O, I, A
Semitendinosus
L: Posterior thigh superficial
O: Ischial tuberosity of ischium
I: Medial condyle of tibia (part of Pes anserinus)
A:
- Extension of thigh at hip
- Flexion of leg at knee
Parallel fibers
Muscles of Posterior Compartment of Thigh: Hamstrings - L, O, I, A
Biceps femoris
L: Posterior thigh superficial
O:
- Long head: ischial tuberosity
- Short head: Linea aspera
I: Head of fibula
A:
- Extension fo thigh at hip
- Flexion of leg at knee
Muscles of Posterior Thigh
All hamstring muscles attach where?
All originate at the ischial tuberosity
Muscles of Low Back - L, O, I, A
Quadratus lumborum
L: Low back deep
O: Iliac crest of ilium
I:
* 12th rib
* Transverse processes of lumbar vertebrae
A:
- Bilateral: Extension of trunk at waist
- Unilateral: Flexion of trunk at waist
Parallel fibers
- Hip hiker muscle
- Big player in low back pain
Suboccipital Muscles
Suboccipital muscles are the major cause of?
Largely the cause of tension headaches (differs from head pain)
Suboccipital Muscles - L, O, I, A
Rectus capitis posterior minor
L: Posterior neck deep
O: Posterior tubercle of C1
I: Inferior nuchal line of occiput
A:
- Bilateral: Extension of head at neck
- Unilateral: Rotation fo head to same side??
This ms. is a specific player in tension headaches due to its attachment to the dura mater
Suboccipital Muscles - L, O, I, A
Oblique capitis inferior
L: Posterior neck deep
O: Spinous process of C2
I: Tranverse process of C1
A:
- Bilateral: Extension of head at the neck
- Unilateral: Rotation of head to same side
